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-   -   Best diff for BEC? (http://www.haynes.co.uk/forums/showthread.php?t=1935)

7ishNZ 11th May 2009 04:01 AM

Best diff for BEC?
 
As sierra 3.14 and 3.38 diffs are scarce... what are the other good choices for a bec diff?

RAYLEE29 11th May 2009 10:25 AM

Hi you can use a freelander diff if you can fit it to the chassis.
Ray:)

jasongray5 11th May 2009 11:29 AM

It kind of depends which engine you use, kawks are better on 3.38 but r1's are fine on 3.62. Which is what im going to use

slimtater 11th May 2009 12:02 PM

You also need to consider if you want an LSD - 3.62s are available with whereas 3.38 (which I have) and 3.14 hasn't. You can get them retro fitted with a Quaife ATB but that will add about £600.

Tilly819 11th May 2009 02:52 PM

depends what you want also,

were i live there are loads off twisty windy roads so iv gone for rocket accelleration with a 3.9 but i will be limited on top speed but iff you want to have a better top speed then obviously something like a 3.14 would be good, as for the actual diff the sierra ones arnt that hard to find i saw 5 on a stand at stonley at the weekend for about £40 each though about buying the lot and putting them on ebay could have made a killing lol but the freelander diffs are quite popular and i dont think you would need an awful lot off chassis modification
hope this helps

tilly

snapper 11th May 2009 11:18 PM

Locost solution for a 3.3 or 3.1 LSD is to take the crown wheel and pinion from the diff and swap it into a 3.6 LSD.

a 3.6 LSD is now £150 a 3.3 £250 and a 3.1 probably £350, having the crown wheel and pinion professionaly fitted is from £100

slimtater 11th May 2009 11:27 PM

So if I can get a 3.62 LSD, take it to somewhere along with my 7" push in shaft 3.38, I can get a 3.38 LSD? Any ideas who will do it?


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